• 대한본초학회지
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• 제24권4호
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• pp.17-23
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• 2009

Objectives : This study aimed to provide basic data for future policies regarding the expansion of health insurance, through investigating the current status of Oriental herbal medicine insurance as perceived by the public. Methods : Questionnaire was developed through literature searches, in-depth interviews, item generation and item reduction. The questionnaires were further refined by a focus group. 221 surveys were retrieved from the general public. Results : The in-depth interviews, reveal that the public is aware of the various forms of Oriental herbal medicine formulas, except for the use of mixture of which are soluble granules covered by insurance. The public awareness of the soluble granules turned out to be so low that enhanced awareness of it is required. The public identified decoctions as the most preferred formula as well as the most effective formulas out of all Oriental herbal medical formulas. They also suggested that it should be the first to be included when the insurance policy expands in the future. The public had frequent experienced not choosing Oriental herbal prescription due to the high cost. Insurance coverage of Oriental herbal prescription is much needed. The public indicated that they will make frequent visits to the KMD if the insurance covers Oriental herbal prescriptions. Conclusions : The current status quo of Oriental herbal medicine insurance showed that the public identified decoctions as the most preferred, most effective and the top priority to be covered by insurance.

• 한국지역지리학회지
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• 제12권2호
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• pp.215-228
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• 2006

세계경제공간은 교통 정보통신의 기술혁신과 국제교역의 자유화 그리고 지역화의 강화로 생산제품의 교역뿐만아니라, 생산요소인 자본, 기술, 노동 등이 국경을 넘어 세계 모든 나라로 자유로이 이동하는 국제화(globalization) 과정이 더욱 확대되고 있다. 세계화된 경제공간에서 핵심부 기업들은 저렴한 생산요소, 특히 저임금 노동력을 찾아 주변 부국가로 자본을 수출하는 동시에 주변부국가로부터 노동력을 유인함으로서 자본과 노동의 국제화를 가져오고 있다. 1980년대 이후 세계에서 가장 역동적인 경제성장으로 세계 3극(triad) 경제체계에서 하나의 축으로 등장한 동아시아는 지역 내 국가간 발전격차에 따른 생산요소비용과 소득수준 차이로 자본은 들른 노동이동의 지역화와 자본과 노동이동의 방향 그리고 이주 노동자의 특성에 많은 변화를 보였다. 우선, 지리적 인접성과 문화 역사적 유사성을 바탕으로 동남아시아와 동북아시아로 구분되어 진행되어왔던 지역 내 노동이동이 동아시아로 통합되고 있다. 그리고 지역 내 노동이동은 자본이동과는 역으로 소득이 높은 국가로의 단계적 이동구조를 보이고 있다. 마지막으로 자본유입이 많은 국가에는 기업내부 이동 노동자가, 자본유입이 적은 국가에는 일반 단순노동자가 유입되는 특성을 보이고 있다.

• East Asian Economic Review
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• 제22권3호
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• pp.275-306
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• 2018

Amid a general rise in protectionism and a trade war between the world's two largest economies, this paper analyzes changes in gains from trade for the world over a decade marked by rapid global economic integration preceding the global financial crisis of 2007-08. It employs state-of-the-art quantitative trade models based on the gravity equation to estimate autarky gains from trade, as well as a recently introduced ANOVA-type structural estimation of the gravity equation to obtain trade costs free of residual trade cost bias. Between 1995 and 2006, the cost of moving to autarky increased by about 45% on average. A decomposition exercise suggests most of the increase in autarky gains from trade on average was due to increases in import shares in total spending, with a limited role for reallocations of spending across sectors with varied trade elasticities. Changes in trade costs between 1995 and 2006 are found to have increased autarky gains from trade, as measured in 2006, by up to 100%.

• 한국경영과학회지
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• 제6권1호
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• pp.57-64
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• 1981

The continuous increase of crude oil consumption has struck great impact into the world economy, When we consider disadvantageous articles in contract for oil import, it would be desirable to import in batch the total quantity of crude oil contracted, but which is not available under the present situation which has many constraints This paper treats of the ways to deliver the crude oil in a given period so as to maximize the profit derived from the sales of oil products, To do this we should consider the prices of crude oil and oil products, inventory cost, transportation cost, oil refinement cost, and fluctuations of these parameters in a given period. The case of Korea Oil Corporation is treated in this paper to generalize the problem of crude oil transportation from Middle East and formulated in a mathematical programming. This programming is transformed into Dynamic Programming through specifing states, stages, payoffs, and recursive function. To clarify these procedure and methods, the case of Korea Oil Corporation is dealt with again and demonstrated in detail.

• Structural Engineering and Mechanics
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• 제72권4호
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• pp.503-512
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• 2019

The construction of segmental precast concrete bridge is an increase due to its superior performance and economic advantages. This type of bridge is appropriate for spans within 30 to 150 m (100 to 500 ft), known as mega-projects and the design optimization would lead to considerable economic benefits. A box-girder cross section superstructure of balanced cantilever construction method is assessed here. The depth of cross section, (variable along the span linearly), bottom flange thickness, and the count of strands are considered as design variables. The optimum design is characterized by geometry, serviceability, ductility, and ultimate limit states specified by AASHTO. Genetic algorithm (GA) is applied in two fronts: as to the saving in construction cost 8% and as to concrete volume 6%. The sensitivity analysis is run by considering different parameters like span/depth ratio, relation between superstructure cost, span length and concrete compressive strength.

• Asian Pacific Journal of Cancer Prevention
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• 제17권2호
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• pp.609-614
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• 2016

Background: Although breast cancer is the most common cancer in women, economic evaluation of breast cancer screening is not fully addressed in developing countries. The main objective of the present study was to analyze the cost-effectiveness of breast cancer screening using mammography in 35-69 year old women in an Iranian setting. Materials and Methods: This was an economic evaluation study assessing the cost-effectiveness of a population-based screening program in 35-69 year old women residing in rural areas of South east Iran. The study was conducted from the perspective of policy-makers of insurance. The study population consisted of 35- to 69-year old women in rural areas of Kerman with a population of about 19,651 in 2013. The decision tree modeling and economic evaluation software were used for cost-effectiveness and sensitivity analyses of the interventions. Results: The total cost of the screening program was 7,067.69 US$ and the total effectiveness for screening and no-screening interventions was 0.06171 and 0.00864 disability adjusted life years averted, respectively. The average cost-effectiveness ratio DALY averted US$ for screening intervention was 7,7082.5 US$ per DALY averted and 589,027 US $ for no-screening intervention. The incremental cost-effectiveness ratio DALY averted was 6,264 US$ per DALY averted for screening intervention compared with no-screening intervention. Conclusions: Although the screening intervention is more cost-effective than the alternative (noscreening) strategy, it seems that including breast cancer screening program in health insurance package may not be recommended as long as the target group has a low participation rate.

• Journal of Korea Trade
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• 제25권8호
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• pp.57-74
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• 2021

Purpose - This study aims to analyze the characteristics of network construction by Norwegian Air and AirAsia X, which are recognized as leading airlines in the long-haul LCC market. Based on this analysis, this study intends to provide implications for networking strategies for Korean LCCs that seek to enter the long-haul market when the aviation market stabilizes again upon the end of the COVID-19 pandemic. Design/methodology - To conduct the network analysis on long-haul low-cost airlines, the Official Airline Guide (OAG) Schedule Analyzer was used to extract long-haul data of Norwegian Air and AirAsia X. To analyze the trend of the long-haul route network, we obtained the data from 3 separate years between 2011 and 2019. The network was analyzed using UCINET 6.0 in order to examine the network structure of long-haul low-cost airlines and the growth trend of each stage. Findings - Analyzing the network of long-haul routes by visualizing the network structure of low-cost carriers showed the following results. In its early years, Norwegian Air's long-haul route network, centering on regional airports in Spain and Sweden, connected European regions, the Middle East, and Africa. As time passed, however, the network expanded and became steadily strong as the airline connected airports in other European countries to North America and Asia. In addition, in 2011, AirAsia X showed links to parts of Europe, such as London and Paris, the Middle East and India, and Australia and Northeast Asia, centering on the Kuala Lumpur Airport. Although the routes in Europe were suspended, the network continued to expand while concentrating on routes of less than approximately 7,000 km. It was found that instead of giving up on ultra-long-haul routes such as Europe, the network was further expanded in Northeast Asia, such as the routes in Korea and Japan centering on China. Originality/value - Until the COVID-19 pandemic broke out, Norwegian Air actively expanded long-haul routes, resulting in the number of long-haul routes quintupling since 2011. The unfortunate circumstance, wherein the world aviation market was rendered stagnant due to the outbreak of COVID-19, hit Norwegian Air harder than any other low-cost carriers. However, in the case of AirAsia X, it was found that it did not suffer as much damage as Norwegian Air because it initially withdrew from unprofitable routes over 7,000 km and grew by gradually increasing profitable destinations over shorter distances. When the COVID-19 pandemic ends and the aviation market stabilizes, low-cost carriers around the world, including Korea, that enter the long-haul route market will need to employ strategies to analyze the marketability of potential routes and to launch the routes that yield the highest profits without being bound by distance. For stable growth, it is necessary to take a conservative stance; first, by reviewing the business feasibility of the operating a small number of highly profitable routes, and second, by gradually expanding these routes.

• 수산해양기술연구
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• 제49권4호
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• pp.395-403
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• 2013

Fishing efficiency of the squid jigging vessel using the LED and metal halide fishing lamp combination was analyzed to reduce the cost for fishing operation utilizing the fishing light system for high degree of efficiency in the squid jigging fishery (one of the representative coastal and offshore fisheries in Korea). This study aims to improve the nature of existing LED lamps and to develop fan-shaped LED lights having 180W of power and ${\pm}45^{\circ}$ angle of light intensity distribution. The marine experiment for making a comparison of their fishing efficiency was tested by a 9.77 tons fishing vessel from Oct. through Dec. 2012. As a result, experimental fishing vessel showed slightly higher fishing efficiency than the average of metal halide lamp-equipped vessel and 20% energy savings. This means that the combination of LED and metal halide lamps would provide an efficient way to lower energy consumption while maintaining fishing efficiency.

• 한국전기전자재료학회논문지
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• 제33권3호
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• pp.173-176
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• 2020

This study focuses on a pillar in which is implanted a P-type maneuver under a P base. This structure is called a super junction structure. By inserting the pillar, the electric field concentrated on the P base is shared by the pillar, so the columns can be dispersed while maintaining a high breakdown voltage. Ten pillars were generated during the multi epitaxial process. The interval between pillars is varied to optimize the electric field to be concentrated on the pillar at a threshold voltage of 6 V, a yield voltage of 4,500 V, and an on-state voltage drop of 3.8 V. The density of the filler gradually decreased when the interval was extended by implanting a filler with the same density. The results confirmed that the size of the depletion layer between the filler and the N-epitaxy layer was reduced, and the current flowing along the N-epitaxy layer was increased. As the interval between the fillers decreased, the cost of the epitaxial process also decreased. However, it is possible to confirm the trade-off relationship that deteriorated the electrical characteristics and efficiency.

• 동아시아경상학회지
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• 제2권4호
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• pp.9-25
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• 2014

The successful implementation of various Enterprise Resource Planning (ERP) systems has provoked considerable interest in this subject over the last few years. The senior management, especially in large corporations have been attracted to look at new information technology and how to leverage it for corporate survival and to gain competitive advantage in volatile business environment. Although there is no shortage of positive reports on the success of ERP installations, many companies have invested millions of dollars in this direction with little to show for its success. Since many of the ERP failures today can be attributed to inadequate planning and poor execution in the implementation and closure of projects. The aim of this article is to offer some solutions to avert potential pitfalls in ERP implementation.